Page 24 of 50

21-18

Special tool VAG 1687, connecting to
pressure adapter VAG 1687/1 (2.7L BiTurbo)
For illustrations purposes VAG is shown lying in
the engine compartment. In practice the tool
should be hung from the hood.

Page 29 of 50

21-22

Rules of cleanliness

CAUTION!

Whenever carrying out any work on the fuel
supply or fuel injection systems, always
observe the following rules of cleanliness.
1. Thoroughly clean fuel system line and hose
connections and the surrounding area before
disconnecting.
2. Place removed components on a clean
surface and cover. Use plastic sheeting or paper.
Do not use fluffy rags that could leave lint!
3. Carefully cover over or seal any components
that have been opened if repairs are not carried
out immediately.
4. Install only clean parts:

Do not remove replacement parts from the
packaging until immediately before they are
to be installed.

Do not use parts that have been stored
without packaging (e.g. in toolboxes, etc.).
5. When the fuel system is opened: